goog.require( 'goog.dom' );
goog.require( 'goog.dom.classes' );
goog.require( 'goog.events' );
goog.require( 'goog.net.XhrIo' );
goog.require( 'goog.structs' );
goog.require( 'goog.json' );
goog.require( 'goog.Uri.QueryData' );

document.createElement( "header" );
document.createElement( "nav" );
document.createElement( "section" );
document.createElement( "aside" );
document.createElement( "footer" );